Don't get me wrong, I believe that every fan is entitled to support whichever team they choose.
But from my perspective I struggle to understand why they do it. I can understand some football-mad kid in Japan becoming a Man Utd fan because the only time he sees football is on the box. But to attach yourself to a club in this country 100's of miles from your home town just because they've got a history of success is to me unfathomable. Each to their own I suppose.